Home Question Answer What is digitalWrite()? What is digitalWrite()? The digitalWrite function is used to write a HIGH or LOW value to a specific Pin. A LOW value is off and a HIGH value is on. It can also be represented by 0’s and 1’s or true and false. Related Questions What is Arduino IDE? What is a Compiler? What is an Algorithm? What is a flowchart? What is Firmware? What are the two types of firmware updates? What is C/C++ programming language? How do we program IoT bridge? Load More